Glass lens.



- J. A. YOUNG & G. YOUNG, JR.

GLASS LENS APPLICATION FILED SEPT. 28 1911.

Patented may '7, 1912.

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E J' kp UNITED STATES PATENT OFFICE.

JOSEPH ALBERT YOUNG AND GEORGE Young 3a., or BELLEVUE, IOWA.

Gnass LENS.

Specification of Letters Patent.

Application filed September 28, 1911. Serial No. 651,881,

in si ns wherein the casin is rovided b b b with a number of openings arranged to suit the design and lenses are held in these openings to be illuminated by a suitable electric or other light placedwithin the casing.

The principal object of the invention is the provision of an improved means of pre venting the rotation of the le1.s within the opening.

With the above and other objects in view as will be hereinafter apparent, the invention consists in general of certain novel details of construction, combinations of elements and arrangements of parts hereinafter fully described and illustrated in the accompanying drawing and specifically claimed.

In the accompanying drawing, like charaeters of reference indicate like'parts in the several views, and :-Figure l'is a View from the rear of a lens showing it in position in a casing, the View illustrating the posi tion of the lens at the moment of its insertion. Fig. 2 is a vertical median section through the lens shown in Fig. 1. Fig. 3 is a view of the casing prior to the insertion of the lens, the locking tongue being bent back. Fig. 1 is a perspective view of the lens removed fromthe casing. Fig. 5 is a view of the lens and a portion of the casing showing the lens locked in position.

For the purpose of illustrating the devicethere has been shown in the present case a single lens and a small portion of one'izvall of the casing. It will be obvious, however, that the lens may be of other shapes or arrangements and that the lenses will be arranged in some particular order on the casing according to the design of the sign to be constructed.

The casing. is indicated at 10 and this casing is provided with one or more openings 11, which are circular in general form but which have spaced notches 12extcnding into the body of the metal of which the casing is formed. When the metal is stamped I to provide the openings 11, a tongue13 is left extel iding inward toward the center of the opening. In the formation of the sign this tongue is afterwardbent back for the purpose of leaving the'opening 11 clear. In

the present instance, a single tongue 13 is' shown, but it will of course be obvious that several of these tongues may be employed if it were deemed necessary on account of the size of the lens or other reason. The lens to be used in connection with this device is provided with a body portion 14, preferably concavo-convex and having a rearwardly projecting annular rib 15. This rib is pro- Vided with one or more notches 16, in ac-.

Patented May 7, 1912.'

cordance with the number of the tongues 13 in the respective openings of the casing. Furthermore, the rib 15 is so arranged that an annular shoulder 17 is formed exterior of this rib. Projecting from the rib 15 are a series of spaced lugs 18 which are equal in number to the notches 12'and similarly spaced. These lugs 18 have their other ends in spaced relation to the shoulder 17 so that the casing 10 may be engaged between the lugs and shoulder, thus hold--- ing the lens in place.

When it is desired to build up a sign with these lenses a suitable design is formed by stamping a series of openings through the metal and the tongues 13 are bent back out of the openings 11, the lenses are then inserted in such a manner that the lugs. 18 will pass through the notches 12 after which each of the lens is rotated to the position shown in Fig. .5 so that the lugslS will engage over the edge of the opening 11, the respective tongue 13 is then bent down into the notch 16, thereby preventing the respective lens from accidentally rotating to the position of entry of the lugs 18 in the notches 12, and thus be in danger of dropping out. It will be noted that by reason of the beveling of the lugs 18 in the event that the fit of the lens in'the middle is too tight, the beveled surface of the respective lugs will force the metal to bend somewhat and permit the passage of the lens into position. There has thus been provided a simple and eificient device of the kind described and for the purpose specified.

. It is obvious that many minor changes therefore desired to confine the invention to;

the exact form herein shown or. described, but it is wished to include all such as properly come within the scope of the appended 'claim. v 1

Having thus described the invention, what is claimed as new is The combination with a display lens havingan annular rib on its rear portion, said rib'being provided with a notch and a plurality of projecting beveled lugs; of a holder for said lens comprising a plate having a circular opening therein mnd a plurality of notches leading therefrom, and a tongue between two of the notches adapted to be engaged in the notch of the lens.

In testimony whereof we hereunto afiix our signatures in presence of two witnesses.

JOSEPH ALBERT YOUNG. GEORGE YOUNG, JR. Witnesses:

J. C. CAMPBELL, Luornn CAMPBELL. 

